WO2005032694A1 - Structures adsorbantes a densite elevee - Google Patents

Structures adsorbantes a densite elevee Download PDF

Info

Publication number
WO2005032694A1
WO2005032694A1 PCT/US2004/032067 US2004032067W WO2005032694A1 WO 2005032694 A1 WO2005032694 A1 WO 2005032694A1 US 2004032067 W US2004032067 W US 2004032067W WO 2005032694 A1 WO2005032694 A1 WO 2005032694A1
Authority
WO
WIPO (PCT)
Prior art keywords
adsorbent
high density
sheet
zeolite
active
Prior art date
Application number
PCT/US2004/032067
Other languages
English (en)
Other versions
WO2005032694A8 (fr
Inventor
James A. Sawada
Soheil Alizadeh-Khiavi
Surajit Roy
Steven M. Kuznicki
Original Assignee
Questair Technologies Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Questair Technologies Inc. filed Critical Questair Technologies Inc.
Priority to CA002540240A priority Critical patent/CA2540240A1/fr
Publication of WO2005032694A1 publication Critical patent/WO2005032694A1/fr
Publication of WO2005032694A8 publication Critical patent/WO2005032694A8/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
    • B01J20/28035—Membrane, sheet, cloth, pad, lamellar or mat with more than one layer, e.g. laminates, separated sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16—Alumino-silicates
    • B01J20/18—Synthetic zeolitic molecular sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28011—Other properties, e.g. density, crush strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/11—Clays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/25—Coated, impregnated or composite adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/30—Physical properties of adsorbents
    • B01D2253/34—Specific shapes
    • B01D2253/342—Monoliths
    • B01D2253/3425—Honeycomb shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0462—Temperature swing adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/047—Pressure swing adsorption
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31—Surface property or characteristic of web, sheet or block

Definitions

  • FIELD This application relates to adsorbent structures for uses including adsorption and/or catalysis applications, and more specifically to adsorbent structures having a high density.
  • This application also is related to Applicant's copending U.S. patent applications numbered. 09/839,381 and 10/041,536, the contents of which are hereby incorporated by reference. BACKGROUND
  • Adsorbent structures have been reported that demonstrate the preparation of zeolite foams. Zeolite foam structures could potentially increase the density of adsorbent material present in a given structural volume when compared to structures incorporating additional support material. Adsorbent foam materials are not suitable for use in several desirable adsorption processes, such as pressure swing adsorption (PSA), and particularly rapid cycle PSA, due to several factors, including the tortuosity of pore passages in the foam, and high void space fractions.
  • PSA pressure swing adsorption
  • Monolith structures known in the art may be formed by extruding a zeolite slurry through a die but the fabrication of such structures does not allow for independent control of channel width and wall thickness.
  • the void space in such extruded structures is undesirably high (to achieve a narrow wall thickness) or the wall thickness is undesirably thick (to achieve a narrow channel height) for use in some important adso ⁇ tion processes such as PSA, and more particularly rapid cycle PSA (processes involving, for example, more than 5 cycles per minute).
  • Adsorbent sheets have been reported that are fabricated according to conventional paper-making techniques using discrete fibers of support materials inco ⁇ orated in a slurry that also comprises binder and adsorbent materials.
  • the support materials and binders serve to dilute the amount of adsorbent held within a sheet volume.
  • a preferred method of packaging such sheets is to form them into corrugated layers.
  • Forming corrugated sheets is not an appropriate method for preparing multi-layer adsorbent structures usable for rapid cycle PSA.
  • Folding the corrugations in such adsorbent paper is not amenable to making extremely thin, uniform layers of material with equally narrow and uniform flow passages between material layers, as are required for optimal functioning of some desired intensive adso ⁇ tion processes, such as rapid cycle PSA.
  • Advances in beaded adsorbent fabrication have demonstrated that binderless pellets can be made through a process of converting the binder system to active zeolite adsorbent.
  • Adsorbent beads treated in this manner have a higher adsorbent density than conventional beads. This is because the volume of the particle has not changed while the amount of adsorbent held within the particle has increased.
  • separation process that use adsorbent pellets or beads in packed adsorbent beds are known to be limited by factors, such as fluidization, fluid friction, and specific surface area, and therefore are not suitable for optimizating some desirable adso ⁇ tion processes, including rapid-cycle PSA.
  • Higher density adsorbent structures have a beneficial effect on many adso ⁇ tion processes, including cyclic adso ⁇ tion deso ⁇ tion processes such as temperature swing adso ⁇ tion (TSA), PSA and partial pressure swing adso ⁇ tion (PPSA) processes.
  • TSA temperature swing adso ⁇ tion
  • PPSA partial pressure swing adso ⁇ tion
  • Higher density adsorbent structures also allow for better performance of the adso ⁇ tive process relative to processes that use adsorbent structures having lesser adsorbent densities.
  • the productivity and recovery from a PSA process using a parallel passage structure is strongly dependent on the density of the adsorbent in the adsorber element or bed.
  • the density of the adsorbent in the adsorber element is a function of the density of the adsorbent in the sheet and the voidage created by the spacer or channel used to provide gas flow channels.
  • An aspect of at least some embodiments of the present invention is to provide a high-density, thin sheet adsorbent structure, and to provide methods for fabricating such high density adsorbent sheet structures to realize the inventive benefits of parallel channel adsorber structures inco ⁇ orating high density adsorbent sheet materials.
  • a high density adsorbent sheet according to the present invention may be prepared by increasing the adsorbent material density in the inventive sheet structure through modifying the components in the inventive sheet which detract from the adsorbent density of the sheet structure as a whole; specifically the binder system and any substrate or support upon which the adsorbent is supported.
  • a high-density adsorbent sheet according to the present invention may include an adsorbent material suitable for a selected adso ⁇ tive separation process.
  • Such suitable adsorbents may include, but are not limited to zeolites, activated carbons, carbon molecular sieves, alumina-based adsorbents, silica-based adsorbents, titanosilicate molecular sieves, and ceria-based molecular sieves.
  • a high-density sheet is provided that may be fabricated by coating activated carbon powder onto fabric, cloth, or felt made from activated carbon fibers.
  • the substrate itself is an active adsorbent material and may increase the adsorbent density of the sheet compared to the same system using an inert or non-adsorbent support.
  • an activated carbon-coated activated carbon fabric, cloth, or felt may be treated under the appropriate conditions (including high temperature pyrolysis and a steam- or C0 2 -activation stage) to convert the binder to active adsorbent.
  • the resulting adsorbent sheet according to the present invention possesses a high adsorbent density because a greater portion of the sheet structure may actively adsorb gases compared to systems where the binder and/or substrate are inert toward the desired adso ⁇ tion process.
  • Further inventive modifications to the above embodiment may be realized by inco ⁇ orating other known adsorbent materials coated on the above referenced activated carbon fabric, cloth or felt substrate materials.
  • Such other known adsorbents may comprise zeolites, carbon molecular sieves, alumina-based adsorbents, silica-based adsorbents, titanosilicate molecular sieves, and ceria-based molecular sieves.
  • an alternative method may be used to produce a similar inventive adsorbent sheet to that disclosed above. This method involves coating a carbon-fiber substrate material with activated carbon powder bound using an organic or inorganic binder. The coated sheets are exposed to water or C0 2 at elevated temperatures to convert the carbon fibers to activated carbon, i.e., carbon particles containing an internal micropore structure suitable for gas adso ⁇ tion.
  • an adsorbent sheet system where the substrate is adso ⁇ tively active and has a different gas adso ⁇ tion selectivity than the adsorbent coated thereon.
  • This embodiment advantageously provides for adso ⁇ tion of two different gases to occur simultaneously; one by the coated adsorbent, and one by the substrate.
  • an adsorbent selective for CO and hydrocarbons having at least one site of unsaturation may be coated onto an activated carbon substrate in sheet form.
  • the CO is adsorbed by the olefin-selective adsorbent while the C0 2 may be adsorbed by the activated carbon substrate. Allowing the two gases to be adsorbed simultaneously may improve the flexibility of design for an adso ⁇ tion bed structure, providing an alternative to bed design requiring adso ⁇ tion of principally one gas component in a given section of the adsorbent bed structure.
  • a substrate having a microporous structure may be modified to change its adso ⁇ tion characteristics as well. It has been documented that salts or oxides may be dispersed onto solid supports using thermal dispersion; a process whereby the two components are heated together to a critical temperature which causes the salt or oxide to distribute itself over the surface of the support.
  • a high density, olefin-selective adsorbent sheet according to the invention may be prepared by coating a cloth, felt, or weave containing fibers having a microporous structure upon which a salt or oxide has been dispersed with an olefin-selective adsorbent having the same or different composition as that of the substrate.
  • the high density adsorbent structures according to the invention may be used in non-PSA applications where physical or chemical adso ⁇ tion through a low pressure-drop structure is advantageous.
  • High density sheets may be assembled into structures suitable for temperature and or partial pressure swing adso ⁇ tion of various gases.
  • An exemplary TSA application utilizes adsorbents for the reversible adso ⁇ tion of water and/or CO 2 .
  • the high density adsorbent sheet structures of the invention would benefit such TSA systems by increasing the bulk density of the adsorbent and subsequently decreasing the size of the adsorbers, and hence the overall unit.
  • the size of the adsorbers and overall unit may be advantageously decreased by utilizing the high density adsorbent structures according to the present invention, which have increased bulk density of the adsorbent material relative to previously existing structures.
  • High density adsorbent sheet structures according to the present invention also may be used in enthalpy devices, conventional examples of which are known in the art, for exchanging sensible and latent heats between gas streams.
  • Smaller and more efficient devices are possible by using the inventive high density sheet structures due to the increased adsorbent loading of the inventive structures compared to existing structures, while such inventive structures still advantageously provide low pressure drop characteristics of existing parallel passage contactor structures.
  • Enthalpy devices may particularly benefit from the modification of the heat capacity characteristics of the high density adsorbent sheet or sheets according to the present invention, as such modifications may improve heat exchange during the adso ⁇ tion process, and allow the enthalpy device to function with a greater heat transfer efficiency.
  • High density adsorbent sheets according to an embodiment of the present invention may be fabricated containing adsorbent materials suitable to act as chemical "getters” i.e., materials which chemically sequester target species. Unlike PSA or TSA applications, such adsorbents tend to require chemical regeneration rather than strictly pressure or thermal regeneration.
  • Benefits of inco ⁇ orating such "getter” type adsorbents into high-density sheet structures according to the present invention include similar benefits to those such inventive high density adsorbent structures bring to PSA and TSA applications; namely improved adso ⁇ tive removal of target species as a function of the length of the bed due to the increased adsorbent density of the structure, coupled with the low pressure drop configuration of the parallel passage sheet structure that eliminates fluidization of the adsorbent material.
  • High density sheet structures according to the invention may be particularly suited to applications where the velocity of the incoming gas stream may exceed the fluidization limits of a traditional packed bed of beaded or extruded adsorbent materials.
  • a high density adsorbent sheet according to the invention also may be formed by filling in a section of an adsorbent foam material, and more particularly a zeolite foam material, with a slurry containing an adsorbent material which has the same or different composition as that comprising the foam framework.
  • a binder system is generally a necessary addition to the adsorbent slurry mixture to provide an inter-particle network of b ⁇ dges, which adhere the adsorbent particles to each other and to the substrate.
  • the binder may be added concurrently with the adsorbent powder or subsequent to the coating process It may be desirable to disperse the binder within the adsorbent slurry to maximize the dispersion of the binder within the resulting coated adsorbent sheet.
  • Binder systems comp ⁇ sing clay mineral mate ⁇ als are a typical binder system useful for producing conventional beaded or pellet adsorbents.
  • Several types of clays are known for use as bmde ⁇ ng agents, including, but not limited to, kaolin, attapulgite, bentomte, and mixtures of such mate ⁇ als.
  • kaolin When kaolin is heated to temperatures of about 550-600°C, the kaolm clay matenal undergoes a transformation from kaolin to metakaolin. Metakaolm may be converted to several different zeolite mate ⁇ als depending on the balance of the reagents in a supplied reacting medium. Zeolites A, X, Y and LSX, which are known to be useful for adso ⁇ tion pu ⁇ oses, all may be synthesized from metakaolin. The chemistry behind such conversions is known and is the route taken by manufacturers of adsorbent beads and pellets to produce high adsorbent density beads and pellets.
  • catalyst particles for fluidized catalytic cracking (FCC) systems are prepared by converting metakaolin spherules into zeolite.
  • High density adsorbent sheets according to the present invention may be fab ⁇ cated that comp ⁇ se kaolm or metakaolin.
  • the use of kaolin to fab ⁇ cate high density adsorbent sheets according to disclosed embodiments of the present invention is facilitated because individual kaolm particles bond together du ⁇ ng the fi ⁇ ng process to metakaolin and provide additional strength to the adsorbent sheet. This is advantageous for manipulating the sheets and constructing suitable parallel passage adsorber structures.
  • the conversion of metakaolm to zeolite is influenced, but does not depend on, the presence of zeolite adsorbent mate ⁇ als.
  • the amount of clay material present in the sheets prior to conversion as a percent of the total solids in the sheet may be anywhere between greater than zero weight percent, e.g. between 1 and 100 weight percent.
  • zeolite adsorbent mate ⁇ als advantageously may be included in the clay sheet, as conversion of the clay to zeolite may take place at milder conditions and or shorter reaction times in sheets initially comprising some zeolite material prior to conversion, relative to all-clay, pre-conversion sheets.
  • the resulting converted high density adsorbent sheets achieve an advantageous increased adsorbent density by way of removing at least a portion of the binder material from the system by conversion to active adsorbent material.
  • converting clay material in a precursor sheet structure into active zeolite adsorbent material in a resulting high density adsorbent sheet structure typically uses conditions that maintain sheet integrity. For example, caustic fluid used to convert the clay material is thoroughly mixed to homogenize any temperature and/or concentration gradients within the fluid.
  • the sheet(s) may be packaged into a parallel passage structure that allows the caustic fluid to flow parallel to the sheets during conversion.
  • Suitable configurations for the sheet may comprise multi-layered, discrete flat sheet or continuous, spirally wrapped single sheet configurations.
  • the precursor sheet comprising clay material are wound in a continuous spiral around a central mandrel means inco ⁇ orating a suitable spacer means to space adjacent concentric layers of the sheet from each other.
  • the spiral structure is subjected to conversion by flowing a suitable caustic conversion fluid through the spiral structure, such that the resulting high density, spirally wound adsorbent structure may be configured for use as a preferred parallel passage adsorbent bed in an adso ⁇ tion process, such as rapid cycle PSA.
  • Caustic fluids generally found suitable for use in the processes described herein typically comprise a suitable silicate material and a base. More particularly, caustic fluids have been used that comprise sodium silicate, and a mixture of potassium hydroxide and sodium hydroxide (typically in about a 3 : 1 ratio), the base having a molarity of about 15-20M.
  • a precursor, clay- containing sheet may be packaged into a structure comprising a plurality of parallel flow channels between the layers of the sheet or sheets.
  • a suitable caustic fluid may be passed though the structure to convert the clay material to zeolite adsorbent, while maintaining the integrity of the resulting high density adsorbent sheet(s).
  • a continuous flow of the caustic fluid through the flow channels between the sheet layers minimizes thermal and concentration gradients in the fluid.
  • an appropriate flow channel height determined by the height of the spacer or spacer means used to space apart adjacent sheet layers in the conversion structure; spacer heights typically range from 75 ⁇ m to about 1,000 ⁇ m, with this upper range being primarily suitable for catalysis, and for adsorbent processes spacer heights typically range from about 75 ⁇ m to about 400 ⁇ m, and even more typically from about 200 ⁇ m to about 300 ⁇ m), it may be possible to approximate a laminar flow of the caustic fluid through the flow channels in the conversion structure.
  • the spacing means used to provide a flow channel in the high density parallel passage adsorbent structures according to the present invention may comprise any suitable spacer structure known in the art or hereafter developed for spacing apart adjacent sheet layers in a parallel passage contactor type structure.
  • suitable spacer structures may comprise, without limitation, discrete cylindrical (or other geometrically shaped) spacer structures printed or deposited on the sheet, or extruded or embossed as part of the sheet during fabrication.
  • Such discrete spacer structures may be regularly spaced across the sheet surface as described in the art for use in parallel passage sheet structures, such as adsorbent bed structures.
  • a preferred such discrete spacer structure may comprise the same adsorbent material as is present in the adsorbent sheet utilized in the adsorbent structure, which may be selected according to the intended adso ⁇ tive separation application of the high density adsorbent structure.
  • At least a portion of the desired adsorbent material in such spacer structures may comprise adsorbent material converted from a precursor material during the sheet conversion process.
  • the overall adsorbent density of the adsorbent structure is advantageously increased by having the spacer material comprised of active adsorbent material for contribution to the intended adso ⁇ tive separation application.
  • a preferred spacer may comprise clay and/or a clay/zeolite mixture.
  • the spacer itself therefore may be converted to active zeolite adsorbent during the sheet conversion process, thereby contributing to the overall adsorbent density in the resulting high density adsorbent structure for use as a high density adsorber element for a desired adso ⁇ tion process.
  • Zeolite-based slurries containing a zeolite and a colloidal suspension of, for example, silica, alumina, ceria, zirconia, yttria, and combinations thereof, also may be used as spacer material.
  • an advantageous spacer may comprise activated carbon adsorbent material.
  • Suitable spacer structures also may comprise metallic mesh, web, foil, wire, expanded metal, and combinations thereof. Stainless steel wire mesh has been successfully demonstrated for use in high density adsorbent structures according to the invention.
  • Suitable metallic spacer materials are not limited to stainless steel and may include other known metallic materials; however, the selected material preferably is compatible with intended conversion process conditions for use in specific inventive adsorbent structures, such as highly caustic solutions at temperatures between 25 and 250 °C in the case of adsorbent structures undergoing clay conversion to zeolite adsorbents.
  • Preferred spacer materials also may be stable to temperatures greater than about 250 °C so that the converted high density adsorbent sheet structures comprising the spacer may heated to remove water within the zeolite and activate the structure to permit gas adso ⁇ tion in an adso ⁇ tive cycle, such as a PSA or rapid cycle PSA cycle.
  • Typical activation temperatures range between about 250 to 650 °C.
  • a suitable method of activation including gas composition, flow rate, heating rates, maximum temperature, and any isothermal dwell periods may be selected according to the activation characteristics of the specific adsorbent material involved.
  • zeolite 13X (NaX) adsorbent material an activation sequence that reaches 350 °C typically may be required to activate the adsorbent for gas separation.
  • CaX zeolite may require a higher activation temperature (in excess of 450 °C) to fully dry the zeolite for it to be active for gas adso ⁇ tion.
  • lower than typical activation temperatures may be used for any given adsorbent material, resulting in a diminished capacity of the adsorbent for a selected gas.
  • zeolites and related microporous materials suitable for adso ⁇ tion applications may be synthesized using chemical conversion techniques known in the art.
  • Zeolite A, X, Y, LSX, and chabazite may be synthesized by known techniques for chemically converting clay precursor materials by modifying the chemistry and conversion conditions within known parameters.
  • Zeolites also can be synthesized using an alumina- based precursor material by making the appropriate changes to the solution chemistry for an alumina-based system, as per the art.
  • Titanosilicate molecular sieves can be prepared via chemical conversion using a titania-based precursor material.
  • the salt used is determined by considering salts whose ions are soluble in water and have a hydrated ionic radius of a size that allows them to enter the zeolite structure. Many of the elements in the periodic table have been successfully exchanged into zeolites. Ions commonly exchanged into zeolites include, but are not limited to, Na + , K + , Ca 2+ , Li + , Cu 2+ , and Ba 2+ , and Ag + and NH 4 + . Zeolites contained in adsorbent sheets made according to the invention may be ion exchanged with ions present in a salt solution by flowing such salt solution containing the desired exchangeable ions through the inventive high density adsorbent sheet structure.
  • Self-supporting adsorbent sheets Converting binder material to active adsorbent according to an aspect of the present invention is a productive route to producing high density adsorbent sheets. It also is possible to increase the density of an adsorbent sheet by excluding inert support materials, which do not contribute to the desired end-use adso ⁇ tive process for the sheet or by using support materials which comprise active adsorbent materials themselves.
  • a common issue when dealing with casting a ceramic film is the drying behaviour of the mixture containing the powder (herein defined as a slurry). If the drying behaviour of the slurry is not appropriate, the film may crack or curl, making it impossible to package the film or sheet into an adsorber element suitable for desired adso ⁇ tion processes, such as rapid-cycle PSA.
  • Suitable slurry additives may be selected to impart, for example, a desirable degree of sheet elasticity, such that a high degree of sheet flatness may be maintained without cracking. Handling and packaging the sheet, such as into spiral wound configurations according to an embodiment of the invention, are therefore possible.
  • Suitable additives to create slurries suitable for casting or forming adsorbent sheets for use in the high density adsorbent structures of the present invention, which are substantially free of support or substrate material may comprise for example, and without limitation, latexes, silicones, butyrates, similar rubberizing and/or plasticizing agents known in the art, and combinations thereof.
  • Such additives may be used to impart a degree of elasticity to the adsorbent sheet and allow the sheet to be bent and flexed without fragmenting or cracking.
  • An active adsorbent material for use in the inventive high density adsorbent structures may require activation at a temperature lower than the decomposition temperature of any additive materials present in the adsorbent sheet slurry.
  • a separate binder additive such as clay material, may not be required to bind the adsorbent particles together following activation, since the plasticizing and/or rubberizing slurry matrix may suitably act to hold the adsorbent particles together.
  • a separate binder material may be required to maintain a binding network between the adsorbent particles once the organic portion of the slurry has decomposed.
  • clay or colloidal material dispersions such as those comprising, for example, silica, zirconia, yttria, or mixtures thereof, may be used advantageously to provide a particle binding network (which is stable to the elevated activation temperatures) within an organic slurry additive matrix.
  • Silicones may act similarly to latexes to rubberize the sheet while having the additional benefit of depositing a residual silica binder network if the sheet is fired at temperatures above the decomposition temperature of the silicone.
  • the temperature at which the sheet is activated generally is dictated by the selected adsorbent and the adso ⁇ tive process in which it may be used. Temperatures as low as about 15 °C and as high as about 650 °C may be used to activate adsorbent materials.
  • the adsorbent used in the slurry to form a self-supporting sheet substantially without inert support or substrate material for use according to the invention may be chosen from any suitable adsorbent materials for a desired adso ⁇ tive application, such as those comprising zeolites, activated carbons (with or without an internal micropore structure), carbon molecular sieves, aluminas, silicas, titanosilicate molecular sieves, or combinations thereof.
  • Clay and titania while not considered to be adsorbents for gas separation, also may be used in the adsorbent material slurry in any ratio an amount greater than 0%, e.g. between 1% and 100%, of the total solids present because the resulting inventive high density adsorbent sheet structure subsequently may be converted to active adsorbent using chemical conversion steps, such as are described herein.
  • Substantially support or substrate-free adsorbent sheets suitable for use in the present invention may be fabricated using any appropriate coating method. Tape casting, a common coating method used in the ceramics industry, may be used to extrude adsorbent slurries into sheets.
  • Nip rolling is another coating technique exemplified by compressing the slurry between two sheets of non-adsorbent material set between rollers a defined distance apart. The distance between the rollers determines the sheet thickness. Appropriate sheet thicknesses may be selected depending on the intended adso ⁇ tive application, such as is previously described in the art.
  • the casting or forming process allows extruded features to be added to the support or substrate-free adsorbent sheets.
  • an impermeable material such as a plastic
  • this integral pattern of extruded material may act as a spacer between the sheets to form a high density parallel passage adsorbent structure according to the invention.
  • This configuration further provides for a high adsorbent density for the bed because the spacers also contain active adsorbent or can be converted to active adsorbent.
  • Activating the self-supporting sheets may be performed in several ways depending on the adsorbent selected and the intended application of the adsorbent structure comprising the sheet. When it is necessary to activate the sheet to temperatures above the decomposition temperature of any organic additive, care may be taken to avoid combustion.
  • Combustion may produce a rapid local temperature rise in the sheet which can damage the adsorbent if the tolerance of the adsorbent is exceeded.
  • the substantially self-supported sheets may be packaged into a parallel channel high density adsorbent structure according to a preferred embodiment of the invention, suitable for a selected adso ⁇ tion process such as a PSA cycle.
  • Such inventive adsorbent structures may be activated prior to adso ⁇ tive use according to a suitable procedure for the adsorbents involved, such as is known in the art. It has been found that a two-step activation sequence may be desirable.
  • An exemplary two-step process involves passing an activation gas through the inventive structure parallel to the adsorbent sheets.
  • the first stage of the activation may be completed in a non-oxidizing atmosphere, such as N 2 , Ar, or C0 2 , to pyrolyze any organic material present in the self-supporting adsorbent sheets.
  • the pyrolysis step may remove a significant portion of the organic material, and may desirably prevent ignition of the organic material.
  • a polishing step may be conducted by passing an oxidizing gas, such as air, through the adsorbent structure. This removes remaining carbonaceous material, which may reduce the likelihood that carbon deposition within the pore structure of the adsorbent inhibits the performance of the adsorbent structure.
  • Addition of non-supporting components to self-supporting sheets may be desirable to modify some of the physical properties of the self-supporting sheets described above for application to the high density adsorbent structures of the present invention by introducing other materials.
  • the heat capacity and conductivity of a self- supporting adsorbent sheet may be modified by including a material possessing a desired thermal conductivity, such as a metallic material. Any metallic or other material possessing suitable thermal properties may be added to the self-supported adsorbent sheet provided it is suited to the chemical conditions within the slurry mixture and the appropriate activation cycle.
  • the metallic or other material may be introduced, for example, as strands, wires, chopped fibers or ribbons.
  • the amount of added thermal material may be selected to be sufficient to impart desired heat capacity and heat conductivity characteristics to the adsorbent sheet, but does not need to provide support to the sheet, as the adsorbent sheet is self-supporting.
  • Altering the intrinsic heat transfer characteristics of self-supported adsorbent sheets may be beneficial to selected adso ⁇ tion processes, such as PSA, because thermal gradients within the adsorbent sheet structure may be controlled. Operating the adsorber element under controlled thermal conditions, such as isothermal conditions, may result in better performance of the self-supported adsorbent structure in a selected adso ⁇ tion cycle.
  • Inventive adsorbent structures comprising self-supporting adsorbent sheets including additions of thermal property altering materials may advantageously provide increased adsorbent density relative to known structures. This is because the amount of thermal material required within the self-supported sheet to enable control of thermal properties of the sheet generally may be much less than the amount of support and/or substrate materials present in a non-self-supported sheet structure as known in the art. The distribution of the thermal property material in the sheet may be uniform or may be isolated to specific areas of the sheet. This characteristic allows the thermal characteristics of the inventive, self-supported sheet structure to be precisely tailored to a desired adso ⁇ tive application.
  • Catalyst support structures Self-supporting sheet structures formed by an arrangement of self-supported sheet(s) and discrete or continuous spacer material according to aspects of the present invention may be used as catalyst support structures.
  • the catalyst material may be intrinsic to the sheet(s) in the structure or may be added in a secondary fashion to the sheet(s) or structure.
  • Typical known catalyst supports such as cordierite honeycombs, are extruded, self- supporting structures with a plurality of parallel channels. The void space ratio in such known structures cannot easily be varied by independently varying the wall thickness and the channel width, nor can a catalyst material be easily applied to the inner surfaces and walls of such a structure in a controllable and uniform manner.
  • the surface area of self-supported parallel passage sheet structures according to the present invention based on multiple layers of thin sheets or films separated by a thin spacer or spacer means may be up to twice or more compared to currently known honeycomb structures having the highest surface area available.
  • the higher surface area of the self-supported parallel passage sheet structures of the present invention may provide greater gas contact with the sheet(s) as a function of the length of the structure. In a catalyst system, greater gas contact may provide improve the performance of the catalyst bed by achieving a higher level of conversion of the reactants as a function of the bed length.
  • wash-coating a desired catalytic material onto the structure is a commonly known method of deposition.
  • Materials for washcoating typically called carriers, generally comprise high-surface-area inorganic solids having an intrinsic micropore structure.
  • examples of such materials include zeolites, such as zeolite Y, mordenite, ZSM- 5, ZSM-11, or similar zeolites with high thermal stability, alumina, silica, ceria, titania, vanadia, and combinations of these materials.
  • a catalytically active material subsequently may be added to the carrier, typically by impregnation using a fluid carrier.
  • Catalyst compositions may be tailored for the end use of the catalyst structure and may generally be proprietary in composition.
  • Typical materials impregnated into catalyst structures may comprise, but are not limited to, Pt, Au, Rh, and Pd, Fe, Co, Ni, Cu, and combinations thereof. Washcoating narrow flow channels with a width to height ratio of less than 2, such as those on known honeycomb catalyst supports, with a slurry containing a carrier or carriers dispersed in a fluid frequently results in an uneven coating thickness on the walls of the channel. This is thought to be due to the surface tension of the slurry within the channel, which tends to deposit a greater amount of material in the corners of the channel and a lesser amount on the walls. This situation may be somewhat moderated, but not eliminated, by altering the channel geometry to more cylindrical configurations.
  • the catalyst materials contained in the thicker portion of the coating are less accessible to a gas stream passing through the conventional structure than the material present on the thinner coating on the walls of the channel.
  • Such limitations of typical conventional catalyst structures are undesirable because they decrease the effectiveness of the structure, which may use costly materials, such as precious metals
  • the earner impregnation process does not typically result in a very high degree of dispersion of the catalyst matenal on the carrier.
  • the earner may not capture equivalent amounts of material -containing fluid, which may produce areas of high and low catalyst material loading. Areas of high mate ⁇ al loading may smter at typical high operating temperatures, which reduces the efficiency of that region of catalyst and reduces the overall performance of the catalyst structure.
  • inhomogeneities from washcoating may be desirably reduced, due to the flow channels of the inventive structures, which typically have a width- to-height ratio significantly greater than 2 and preferably greater than about 25. Such ratio is much greater than the average honeycomb structure, which may have an equivalent channel aspect ratio of unity.
  • the favorable flow channel aspect ratio of a parallel channel structure formed from a self-supporting sheet or sheets according to the present invention may allow for a much narrower channel to be filled and emptied than in the case of conventional honeycomb structures. This is because capillary effects dimmish with channels that are much wider than their height.
  • a sheet structure according to the present invention may be assembled including a sheet containing the desired earner matenal for catalytic use.
  • the amount and type of a earner in the sheet may be dictated by the desired end use of the inventive catalytic structure and may comprise anywhere from greater than zero %, e.g. 1% to 100%, of the weight of the solids in the sheet.
  • the balance of the sheet may comprise another earner material or a clay.
  • Such a self-supported sheet may be further treated by washcoating using any suitable method, including dip coating, or combination of suitable methods, to deposit a carrier film onto one or both sides of the sheet(s).
  • the film of earner material deposited on the sheet(s) may be of the same or different composition compared to the composition of the sheet.
  • the catalyst impregnation of a sheet including a carrier matenal may be done before or after the sheet is assembled into the inventive parallel channel structure.
  • the sheet may be exposed to one or a se ⁇ es of tanks containing the catalyst soluhon(s) to be impregnated
  • the earner sheet may be impregnated by spraying or printing the catalyst solut ⁇ on(s) onto the sheet Having access to the internal surface of the catalyst bed allows the catalyst metal(s) to be precisely placed to maximize their dispersion and minimize potential sintenng effects.
  • the catalyst fluid may be flowed through the channels to wet the carrier.
  • Conventional honeycomb supports presently in use as catalyst supports generally comprise inorganic (cordierite) or metallic materials.
  • Metal honeycombs have superior heat transfer characteristics but the thermal expansion characteristics of the metal are significantly different than the coatings typically used. This may cause significant adhesion problems of the carrier to the metal support. In many instances, the carrier cannot be adequately adhered to the metal support to withstand repeated thermal cycling.
  • the benefits of coating and impregnating self-supporting sheet structures can be coupled with the benefits of metal honeycombs by using sheets containing materials having desired heat transfer properties in the various aforementioned configurations.
  • the carrier in this case adheres to an inorganic base while the material added to enhance heat transfer characteristics of the sheet may impart the desired thermal properties of a conventional metal support structure.
  • a selected adsorbent material also may need to be matched with a specific support or substrate to impart preferred heat transfer, adso ⁇ tive, or surface texture characteristics to the sheet including that adsorbent.
  • not all adsorbent or catalyst carrier materials may be easily amenable to produce self-supporting sheets with durability suitable for all applications.
  • not all adso ⁇ tive or catalytic processes may benefit substantially from high density structures if mass transfer considerations require only a thm surface coat.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

L'invention porte sur des structures adsorbantes à densité élevée qui peuvent être construites dans des configurations de contacteur à passages parallèles au moyen de feuilles adsorbantes améliorées à densité élevée. Ces feuilles adsorbantes améliorées à densité élevée peuvent être formées au moyen d'un support à adsorption active ou de matériaux de substrat sur lesquels le matériau adsorbant est appliqué, par exemple par des procédés de revêtement si bien que dans la structure adsorbante à densité élevée obtenue, à la fois le substrat et le matériau adsorbant revêtu sont actifs dans des procédés d'adsorption. Dans une alternative, des feuilles adsorbantes améliorées à densité élevée peuvent être formées et contenir des matériaux précurseurs, comme certaines argiles, qui peuvent être revêtus sur des matériaux de support connus et par la suite convertis en matériaux adsorbants actifs au moyen des techniques de conversion connues. Cela permet d'obtenir des feuilles adsorbantes à densité élevée contenant un matériau adsorbant sans fractions de matériau de liaison inerte. Des feuilles adsorbantes améliorées autoportantes peuvent aussi être formées sans utiliser de matériau de support, ce qui donne des densités d'adsorption plus élevées par rapport aux feuilles adsorbantes connues.
PCT/US2004/032067 2003-09-29 2004-09-29 Structures adsorbantes a densite elevee WO2005032694A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002540240A CA2540240A1 (fr) 2003-09-29 2004-09-29 Structures adsorbantes a densite elevee

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50715103P 2003-09-29 2003-09-29
US60/507,151 2003-09-29

Publications (2)

Publication Number Publication Date
WO2005032694A1 true WO2005032694A1 (fr) 2005-04-14
WO2005032694A8 WO2005032694A8 (fr) 2005-07-21

Family

ID=34421586

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/032067 WO2005032694A1 (fr) 2003-09-29 2004-09-29 Structures adsorbantes a densite elevee

Country Status (3)

Country Link
US (1) US20050129952A1 (fr)
CA (1) CA2540240A1 (fr)
WO (1) WO2005032694A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008143825A1 (fr) 2007-05-18 2008-11-27 Exxonmobil Research & Engineering Company Élimination de co2, n2 ou h2s des mélanges de gaz par adsorption par variation de pression avec des contacteurs d'adsorbants faiblement mésoporeux
WO2008143823A1 (fr) 2007-05-18 2008-11-27 Exxonmobil Research And Engineering Company Contacteurs d'adsorbants faiblement mésoporeux pour adsorption par variation de pression
WO2008143820A1 (fr) 2007-05-18 2008-11-27 Exxonmobil Research And Engineering Company Procédé pour éliminer un gaz cible à partir d'un mélange de gaz par une adsorption modulée
WO2008143821A1 (fr) 2007-05-18 2008-11-27 Exxonmobil Research And Engineering Company Séparation d'hydrocarbures lourds de mélanges gazeux contenant des hydrocarbures lourds et du méthane
WO2013138437A2 (fr) 2012-03-14 2013-09-19 Exxonmobil Research And Engineering Company Procédé de traitement d'amine pour des séparations sélectives de gaz acide
FR2992573A1 (fr) * 2012-06-29 2014-01-03 Air Liquide Assemblage de modules d'adsorbants structures
WO2015017240A1 (fr) 2013-07-29 2015-02-05 Exxonmobil Research And Engineering Company Séparation de sulfure d'hydrogène de gaz naturel
US9034078B2 (en) 2012-09-05 2015-05-19 Exxonmobil Upstream Research Company Apparatus and systems having an adsorbent contactor and swing adsorption processes related thereto
US9067168B2 (en) 2010-05-28 2015-06-30 Exxonmobil Upstream Research Company Integrated adsorber head and valve design and swing adsorption methods related thereto
US9458367B2 (en) 2012-03-14 2016-10-04 Exxonmobil Research And Engineering Company Low temperature transport and storage of amine gas treatment solutions
FR3035196A1 (fr) * 2015-04-17 2016-10-21 Air Liquide Adsorbant structure en plaques
EP3144050A1 (fr) 2008-04-30 2017-03-22 Exxonmobil Upstream Research Company Procédé pour l élimination d huile d'un courant gazeux utilitaire
US9751041B2 (en) 2015-05-15 2017-09-05 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes related thereto
US9861929B2 (en) 2015-05-15 2018-01-09 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes related thereto
WO2018085927A1 (fr) * 2016-11-08 2018-05-17 Inventys Thermal Technologies Inc. Contacteur à passage parallèle et procédé de séparation de gaz par adsorption
US10016715B2 (en) 2011-03-01 2018-07-10 Exxonmobil Upstream Research Company Apparatus and systems having an encased adsorbent contactor and swing adsorption processes related thereto

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060048648A1 (en) * 2004-08-20 2006-03-09 Questair Technologies Inc. Parallel passage contactor structure
US20060090646A1 (en) * 2004-11-04 2006-05-04 Questair Technologies Inc. Adsorbent material for selective adsorption of carbon monoxide and unsaturated hydrocarbons
US7645324B2 (en) * 2005-01-07 2010-01-12 Xebec Adsorption Inc. Engineered adsorbent structures for kinetic separation
US7837977B2 (en) * 2005-09-13 2010-11-23 Chevron U.S.A. Inc. Preparation of titanosilicate zeolite TS-1
EP2152926A4 (fr) * 2007-04-27 2012-01-25 Taegu Tec Ltd Outils de coupe au carbure cémenté revêtus et procédé de pré-traitement et d'applications d'un revêtement destiné à la production d'outils de coupe au carbure cémenté
JP5150132B2 (ja) * 2007-04-27 2013-02-20 日本碍子株式会社 ハニカムフィルタシステム
BRPI0820165A2 (pt) 2007-11-12 2015-06-16 Exxonmobil Upstream Res Co Método e sistema para tratar uma corrente de alimentação gasosa, e, método para tratar uma corrente gasosa rica em nitrogênio.
US20100050869A1 (en) * 2008-08-28 2010-03-04 Kishor Purushottam Gadkaree Plate System For Contaminant Removal
CA2740998A1 (fr) * 2008-10-20 2010-04-29 Ivanka Atanasova-Hoehlein Procede pour eliminer des composes de soufre corrosifs d'une huile de transformateur
TWI495501B (zh) 2010-11-15 2015-08-11 Exxonmobil Upstream Res Co 動力分餾器及用於氣體混合物之分餾的循環法
EP2680948A4 (fr) 2011-03-01 2015-05-06 Exxonmobil Upstream Res Co Appareil et systèmes dotés d'un ensemble vanne l'alimentation rotative et processus d'adsorption à balancement associés
AU2012223487A1 (en) 2011-03-01 2013-09-19 Exxonmobil Upstream Research Company Apparatus and systems having compact configuration multiple swing adsorption beds and methods related thereto
US9017457B2 (en) 2011-03-01 2015-04-28 Exxonmobil Upstream Research Company Apparatus and systems having a reciprocating valve head assembly and swing adsorption processes related thereto
CA2842928A1 (fr) 2011-03-01 2012-11-29 Exxonmobil Upstream Research Company Appareil et systemes ayant un ensemble robinet rotatif et procedes d'adsorption modulee s'y rapportant
EA026118B1 (ru) 2011-03-01 2017-03-31 Эксонмобил Апстрим Рисерч Компани Способ удаления загрязняющих примесей из потока углеводородов в циклическом адсорбционном процессе и связанные с этим способом устройство и система
BR112013018276A2 (pt) 2011-03-01 2019-09-24 Exxonmobil Upstream Res Co métodos de remover contaminantes de uma corrente de hidrocarbonetos por adsorção oscilante e aparelhos e sistemas relacionados
WO2016014232A1 (fr) 2014-07-25 2016-01-28 Exxonmobil Upstream Research Company Appareil et système présentant un ensemble valve et procédés d'adsorption modulée associés
AU2015347232B2 (en) 2014-11-11 2018-02-01 Exxonmobil Upstream Research Company High capacity structures and monoliths via paste imprinting
WO2016094034A1 (fr) 2014-12-10 2016-06-16 Exxonmobil Research And Engineering Company Fibres de polymère incorporées dans un adsorbant dans un lit à garnissage et contacteurs en tissu, et procédés et dispositifs les utilisant
EP3237091B1 (fr) 2014-12-23 2021-08-04 ExxonMobil Upstream Research Company Lits adsorbants structurés et leurs procédés de production
US10080991B2 (en) 2015-09-02 2018-09-25 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes related thereto
EA201890610A1 (ru) 2015-09-02 2018-07-31 Эксонмобил Апстрим Рисерч Компани Способ и система для осуществления короткоцикловой адсорбции с использованием головного потока метаноотгонной колонны в качестве продувочного газа
CN108348836B (zh) 2015-10-27 2021-01-26 埃克森美孚上游研究公司 具有多个阀门的变化吸附方法相关的设备和***
CN108348838B (zh) 2015-10-27 2021-11-05 埃克森美孚上游研究公司 具有多个阀门的变吸附方法相关的装置和***
AU2016346798B2 (en) 2015-10-27 2019-11-07 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes related thereto having actively-controlled feed poppet valves and passively controlled product valves
CA3005448A1 (fr) 2015-11-16 2017-05-26 Exxonmobil Upstream Research Company Materiaux adsorbants et procedes d'adsorption de dioxyde de carbone
EP3429727A1 (fr) 2016-03-18 2019-01-23 Exxonmobil Upstream Research Company Appareil et système pour procédés d'adsorption modulée associés
WO2017209861A1 (fr) 2016-05-31 2017-12-07 Exxonmobil Upstream Research Company Appareil et système pour procédés d'adsorption modulée
EP3463619A1 (fr) 2016-05-31 2019-04-10 ExxonMobil Upstream Research Company Appareil et système pour procédés d'adsorption modulée
US10434458B2 (en) 2016-08-31 2019-10-08 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes related thereto
SG11201900842QA (en) 2016-09-01 2019-03-28 Exxonmobil Upstream Res Co Swing adsorption processes for removing water using 3a zeolite structures
US10328382B2 (en) 2016-09-29 2019-06-25 Exxonmobil Upstream Research Company Apparatus and system for testing swing adsorption processes
CN109862962A (zh) 2016-10-21 2019-06-07 康宁股份有限公司 具有电阻加热能力的吸附剂结构及其制造方法
CN110494214B (zh) 2016-12-16 2022-07-22 福罗德莱(张家港)包装制品有限公司 固体形式吸附剂
AU2017379685B2 (en) 2016-12-21 2020-03-12 Exxonmobil Upstream Research Company Self-supporting structures having foam-geometry structure and active materials
AU2017379684B2 (en) 2016-12-21 2020-03-12 Exxonmobil Upstream Research Company Self-supporting structures having active materials
US11331620B2 (en) 2018-01-24 2022-05-17 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes
US11413567B2 (en) 2018-02-28 2022-08-16 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes
US11318410B2 (en) 2018-12-21 2022-05-03 Exxonmobil Upstream Research Company Flow modulation systems, apparatus, and methods for cyclical swing adsorption
US11376545B2 (en) 2019-04-30 2022-07-05 Exxonmobil Upstream Research Company Rapid cycle adsorbent bed
WO2021071755A1 (fr) 2019-10-07 2021-04-15 Exxonmobil Upstream Research Company Procédés et systèmes d'adsorption utilisant une commande d'élévation de pas de soupapes champignon à actionnement hydraulique
EP4045173A1 (fr) 2019-10-16 2022-08-24 Exxonmobil Upstream Research Company (EMHC-N1-4A-607) Procédés de déshydratation utilisant une zéolite rho cationique
CN115955999A (zh) * 2020-05-29 2023-04-11 斯万特有限公司 具有活性层的平行通道接触器

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5570342A (en) * 1978-11-17 1980-05-27 Sanyo Kokusaku Pulp Co Ltd Manufacturing method for adsorptive sheet
JPH0780297A (ja) * 1993-07-21 1995-03-28 Takeda Chem Ind Ltd 吸着性物質含有シート
JP2000218121A (ja) * 1999-01-28 2000-08-08 Mazda Motor Corp 吸着処理用部材並びにそれを用いた吸着処理装置及び吸着処理方法
EP1046422A2 (fr) * 1999-04-23 2000-10-25 The Boc Group, Inc. Adsorbants et procédé de séparation par adsorption
US6379437B1 (en) * 1997-09-19 2002-04-30 Valtion Teknillinen Tutkimuskeskus Filter for gases
US6406523B1 (en) * 1999-06-09 2002-06-18 Questair Technologies, Inc. Rotary pressure swing adsorption apparatus
EP1342498A2 (fr) * 2002-03-08 2003-09-10 Air Products And Chemicals, Inc. Tissu adsorbant autoportant pour la séparation de gaz
JP2003340278A (ja) * 2002-05-29 2003-12-02 Seibu Giken Co Ltd 吸着シート及びこれを用いた吸着素子
EP1413348A1 (fr) * 2002-08-13 2004-04-28 Air Products And Chemicals, Inc. Matériau adsorbant sous forme de feuille pour dispositifs de mise en contact à courants parallèles

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207734A (en) * 1991-07-22 1993-05-04 Corning Incorporated Engine exhaust system for reduction of hydrocarbon emissions
US5676909A (en) * 1995-08-11 1997-10-14 Hollinger, Jr.; William K. Archival preservation coatings and adhesives
US5370728A (en) * 1993-09-07 1994-12-06 Praxair Technology, Inc. Single bed pressure swing adsorption system and process
US5980612A (en) * 1998-01-21 1999-11-09 Compliance Environmental Management, Inc. Adsorbent activated carbon fiber sheet filter and method of regeneration
JP4194729B2 (ja) * 2000-02-22 2008-12-10 クラレケミカル株式会社 多孔質吸着剤およびフィルター
US20040060447A1 (en) * 2001-10-10 2004-04-01 Powell Michael Roy Multiple plate sorption assembly and method for using same
FR2835445B1 (fr) * 2002-02-07 2004-11-19 Air Liquide Utilisation d'un adsorbant sous forme de mousse solide pour la purification ou la separation de gaz
US6893483B2 (en) * 2002-03-08 2005-05-17 Air Products And Chemicals, Inc. Multilayered adsorbent system for gas separations by pressure swing adsorption

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5570342A (en) * 1978-11-17 1980-05-27 Sanyo Kokusaku Pulp Co Ltd Manufacturing method for adsorptive sheet
JPH0780297A (ja) * 1993-07-21 1995-03-28 Takeda Chem Ind Ltd 吸着性物質含有シート
US6379437B1 (en) * 1997-09-19 2002-04-30 Valtion Teknillinen Tutkimuskeskus Filter for gases
JP2000218121A (ja) * 1999-01-28 2000-08-08 Mazda Motor Corp 吸着処理用部材並びにそれを用いた吸着処理装置及び吸着処理方法
EP1046422A2 (fr) * 1999-04-23 2000-10-25 The Boc Group, Inc. Adsorbants et procédé de séparation par adsorption
US6406523B1 (en) * 1999-06-09 2002-06-18 Questair Technologies, Inc. Rotary pressure swing adsorption apparatus
EP1342498A2 (fr) * 2002-03-08 2003-09-10 Air Products And Chemicals, Inc. Tissu adsorbant autoportant pour la séparation de gaz
JP2003340278A (ja) * 2002-05-29 2003-12-02 Seibu Giken Co Ltd 吸着シート及びこれを用いた吸着素子
EP1413348A1 (fr) * 2002-08-13 2004-04-28 Air Products And Chemicals, Inc. Matériau adsorbant sous forme de feuille pour dispositifs de mise en contact à courants parallèles

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 004, no. 113 (C - 021) 13 August 1980 (1980-08-13) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 06 31 July 1995 (1995-07-31) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 11 3 January 2001 (2001-01-03) *
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05) *

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008143823A1 (fr) 2007-05-18 2008-11-27 Exxonmobil Research And Engineering Company Contacteurs d'adsorbants faiblement mésoporeux pour adsorption par variation de pression
WO2008143820A1 (fr) 2007-05-18 2008-11-27 Exxonmobil Research And Engineering Company Procédé pour éliminer un gaz cible à partir d'un mélange de gaz par une adsorption modulée
WO2008143821A1 (fr) 2007-05-18 2008-11-27 Exxonmobil Research And Engineering Company Séparation d'hydrocarbures lourds de mélanges gazeux contenant des hydrocarbures lourds et du méthane
WO2008143825A1 (fr) 2007-05-18 2008-11-27 Exxonmobil Research & Engineering Company Élimination de co2, n2 ou h2s des mélanges de gaz par adsorption par variation de pression avec des contacteurs d'adsorbants faiblement mésoporeux
EP3144050A1 (fr) 2008-04-30 2017-03-22 Exxonmobil Upstream Research Company Procédé pour l élimination d huile d'un courant gazeux utilitaire
US9067168B2 (en) 2010-05-28 2015-06-30 Exxonmobil Upstream Research Company Integrated adsorber head and valve design and swing adsorption methods related thereto
US10016715B2 (en) 2011-03-01 2018-07-10 Exxonmobil Upstream Research Company Apparatus and systems having an encased adsorbent contactor and swing adsorption processes related thereto
WO2013138437A2 (fr) 2012-03-14 2013-09-19 Exxonmobil Research And Engineering Company Procédé de traitement d'amine pour des séparations sélectives de gaz acide
US9458367B2 (en) 2012-03-14 2016-10-04 Exxonmobil Research And Engineering Company Low temperature transport and storage of amine gas treatment solutions
FR2992573A1 (fr) * 2012-06-29 2014-01-03 Air Liquide Assemblage de modules d'adsorbants structures
WO2014001670A1 (fr) * 2012-06-29 2014-01-03 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Assemblage de modules d'adsorbants structurés
US9757679B2 (en) 2012-06-29 2017-09-12 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Assembly of structured adsorbent modules
US9034078B2 (en) 2012-09-05 2015-05-19 Exxonmobil Upstream Research Company Apparatus and systems having an adsorbent contactor and swing adsorption processes related thereto
WO2015017240A1 (fr) 2013-07-29 2015-02-05 Exxonmobil Research And Engineering Company Séparation de sulfure d'hydrogène de gaz naturel
FR3035196A1 (fr) * 2015-04-17 2016-10-21 Air Liquide Adsorbant structure en plaques
US9751041B2 (en) 2015-05-15 2017-09-05 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes related thereto
US9861929B2 (en) 2015-05-15 2018-01-09 Exxonmobil Upstream Research Company Apparatus and system for swing adsorption processes related thereto
WO2018085927A1 (fr) * 2016-11-08 2018-05-17 Inventys Thermal Technologies Inc. Contacteur à passage parallèle et procédé de séparation de gaz par adsorption
KR20190075127A (ko) * 2016-11-08 2019-06-28 인벤티스 써멀 테크놀로지스 인코포레이티드 평행 통로 콘택터 및 흡착 기체 분리 방법
JP2019535501A (ja) * 2016-11-08 2019-12-12 インベンティーズ サーマル テクノロジーズ インコーポレイテッド 平行通路コンタクター及び吸着ガス分離方法
JP6999665B2 (ja) 2016-11-08 2022-01-18 スヴァンテ インコーポレイテッド 平行通路コンタクター及び吸着ガス分離方法
KR102488797B1 (ko) 2016-11-08 2023-01-13 스반테 인코포레이티드 평행 통로 콘택터 및 흡착 기체 분리 방법
US11766634B2 (en) 2016-11-08 2023-09-26 Svante Inc. Parallel passage contactor and method of adsorptive gas separation

Also Published As

Publication number Publication date
WO2005032694A8 (fr) 2005-07-21
US20050129952A1 (en) 2005-06-16
CA2540240A1 (fr) 2005-04-14

Similar Documents

Publication Publication Date Title
US20050129952A1 (en) High density adsorbent structures
EP2826553B1 (fr) Procédé de fabrication de stratifiés d'adsorbant pour l'adsorption modulée en pression à haute fréquence
US10675615B2 (en) High capacity structures and monoliths via paste imprinting
US20040118747A1 (en) Structured adsorbents for desulfurizing fuels
EP1080771A1 (fr) Procédé pour la séparation de gaz utilisant des particules adsorbantes composites ou creuses
AU2017379685A1 (en) Self-supporting structures having foam-geometry structure and active materials
SG192602A1 (en) Gas purification process utilizing engineered small particle adsorbents
EP3325130B1 (fr) Procédé de production d'un agent d'adsorption pour le traitement d'un gaz comprimé, et dispositif d'adsorption pourvu d'un tel agent d'adsorption
US10363516B2 (en) Flexible adsorbents for low pressure drop gas separations
WO2015054332A1 (fr) Nids d'abeilles composites pour la conservation en atmosphère contrôlée
US9610561B2 (en) Method of making a honeycomb having channels containing a porous adsorbent
Rezaei Optimization of structured adsorbents for gas separation processes
JP2023526978A (ja) 活性層を有する並列流路接触器
CA2357554A1 (fr) Adsorbants monolithes ameliores pour systemes de separation d'air

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
CFP Corrected version of a pamphlet front page
CR1 Correction of entry in section i

Free format text: IN PCT GAZETTE 15/2005 UNDER (72, 75) REPLACE "SAWAD, JAMES, A." BY "SAWADA, JAMES, A."

WWE Wipo information: entry into national phase

Ref document number: 2540240

Country of ref document: CA

122 Ep: pct application non-entry in european phase